Roots of Numbers

Presentation

•

Mathematics

•

9th Grade

•

Practice Problem

•

Easy

•

CCSS

8.EE.A.2

Standards-aligned

Christopher Gassler

Used 7+ times

FREE Resource

5 Slides • 5 Questions

Roots of Numbers

Objective: Find the roots of positive and negative numbers.

Math Response

Do you have your NOTEBOOK OUT?

If you do, find: $\sqrt[]{49}$ .

Type answer here

Deg^°

Rad

The Root of a Number

The root of a number x is another number which when multiplied by itself a given number of times equals x.

EXAMPLE

5³ = 125

means

5 × 5 × 5 = 125

so ... 5 is the cubed root of 125

or ...

EXAMPLES

because

Drag and Drop

\sqrt[3]{64}

\sqrt[]{64}

\sqrt[3]{216}

Drag these tiles and drop them in the correct blank above

EXAMPLES

because

is not a real number because

**if the root is even and the radicand is negative, there is no real number answer**

Drag and Drop

\sqrt[3]{-27}

\sqrt[]{-64}

\sqrt[3]{-64}

Drag these tiles and drop them in the correct blank above

-3

not a real number

-4

-9

-72

-32

EXAMPLES

because

Math Response

Find: $\sqrt[4]{\frac{16}{625}}$

Type answer here

Deg^°

Rad

Fill in the Blanks

Take a picture of the notes you took for this lesson.

Type answer...

Roots of Numbers

Objective: Find the roots of positive and negative numbers.

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